氟蛋白泡沫的灭火速度比普通蛋白泡沫快()。
(A)1/2
(B)1/3
(C)1/4
(D)1/5
参考答案:B
补写出下列名篇名句中的空缺部分。(6分)
(1)因人之力而敝之,不仁; ; 。《烛之武退秦师》
(2) ,飞鸟相与还。《饮酒》
(3)今者项庄拔剑舞, 。《鸿门宴》
(4)沉默呵,沉默呵! ,就在沉默中灭亡。《记念刘和珍君》
(5) ,若出其里。《观沧海》
A family made a down payment of $75 and borrowed the balance on a set of encyclopedias that cost $400. The balance with interest was paid in 23 monthly payments of $16 each and a final payment of $9. The amount of interest paid was what percent of the amount borrowed ?()
A.6%
B.12%
C.14%
D.16%
E.20%